98778937 has 8 divisors (see below), whose sum is σ = 101651976. Its totient is φ = 95916672.

The previous prime is 98778919. The next prime is 98778943. The reversal of 98778937 is 73987789.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29822521 + 68956416 = 5461^2 + 8304^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 98778937 - 2¹⁵ = 98746169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98778917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18213 + ... + 23005.

It is an arithmetic number, because the mean of its divisors is an integer number (12706497).

Almost surely, 2^98778937 is an apocalyptic number.

It is an amenable number.

98778937 is a deficient number, since it is larger than the sum of its proper divisors (2873039).

98778937 is a wasteful number, since it uses less digits than its factorization.

98778937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387.

The product of its digits is 5334336, while the sum is 58.

The square root of 98778937 is about 9938.7593290108. The cubic root of 98778937 is about 462.2619171018.

The spelling of 98778937 in words is "ninety-eight million, seven hundred seventy-eight thousand, nine hundred thirty-seven".